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Class Information
Number: 331/65
Name: Oscillators > With device responsive to external physical condition
Description: Subject matter wherein the oscillator is combined with means distinct from the oscillator system or wherein the means is a modified element of the oscillator, which means is responsive to a nonelectrical condition external to the oscillator, a current characteristic of the oscillator, (e.g., amplitude or frequency) being varied in accordance with changes in the sensed condition.










Sub-classes under this class:

Class Number Class Name Patents
331/66 Temperature or light responsive 350


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8571816 Electromagnetic flow meter Oct. 29, 2013
8461934 External oscillator detector Jun. 11, 2013
8427249 Resonator with reduced acceleration sensitivity and phase noise using time domain switch Apr. 23, 2013
8351867 Oscillator, frequency generating circuit and wireless communication system using the oscillator Jan. 8, 2013
8081036 Electronic device used for measuring and detecting the variations of at least one input signal Dec. 20, 2011
8026771 Driver device, physical quantity measuring device, and electronic instrument Sep. 27, 2011
8022777 Ovenized crystal oscillator assembly Sep. 20, 2011
7942833 Motion guide device, and its control system and control program May. 17, 2011
7924105 Method for the detection of a predamping state and inductive sensor with predamping detection Apr. 12, 2011
7924103 Inductive proximity switch and method for its operation Apr. 12, 2011
7924104 Methods and apparatus for compensating a clock bias in a GNSS receiver Apr. 12, 2011
7915965 Oscillator having reduced sensitivity to acceleration Mar. 29, 2011
7899633 Sensing apparatus Mar. 1, 2011
7893776 Monitoring and compensating for real time local circuit speed in an integrated circuit Feb. 22, 2011
7880552 Control system for walking assist device Feb. 1, 2011
7849744 Driving device, physical quantity measurement device, and electronic instrument Dec. 14, 2010
7843277 Haptic feedback generation based on resonant frequency Nov. 30, 2010
7737796 Constant temperature type crystal oscillator Jun. 15, 2010
7714670 Monitoring and compensating for real time local circuit speed in an integrated circuit May. 11, 2010
7692506 Oscillation driver device, physical quantity measuring device, and electronic instrument Apr. 6, 2010
7683727 Acceleration feedback control for crystal oscillators Mar. 23, 2010
7671688 Reference-less clock circuit Mar. 2, 2010
7667547 Loosely-coupled oscillator Feb. 23, 2010
7649422 Real time clock integrated circuit and electronic apparatus using the same Jan. 19, 2010
7649426 Apparatus and method for temperature compensation of crystal oscillators Jan. 19, 2010
7626466 Proximity switch and method for operating a proximity switch Dec. 1, 2009
7583154 Voltage controlled oscillator Sep. 1, 2009
7528597 Induction sensor May. 5, 2009
7511585 Automatic page detector Mar. 31, 2009
7511476 Electromagnetic sensor systems and methods of use thereof Mar. 31, 2009
7429858 Oscillating-beam magnetometer Sep. 30, 2008
7418614 External signal detection circuit and real-time clock Aug. 26, 2008
7398163 Sensing apparatus Jul. 8, 2008
7348857 Monitoring and compensating for real time local circuit speed in an integrated circuit Mar. 25, 2008
7332975 Reference-less clock circuit Feb. 19, 2008
7327197 Radiation hardened phase locked loop Feb. 5, 2008
7271670 CR oscillation circuit Sep. 18, 2007
7242260 Real time clock apparatus Jul. 10, 2007
7209013 Systems and methods for self-calibration Apr. 24, 2007
7119551 Capacitive sensor Oct. 10, 2006
7106143 Method for achieving highly reproducible acceleration insensitive quartz crystal oscillators Sep. 12, 2006
7098748 Integrated CMOS high precision piezo-electrically driven clock Aug. 29, 2006
7053319 Electronic weighing apparatus utilizing surface acoustic waves using sensors operating at different frequencies, having temperature compensation, and a push oscillator May. 30, 2006
7049935 Sizing of an electromagnetic transponder system for a dedicated distant coupling operation May. 23, 2006
7042213 Magnetometer having an electromechanical resonator May. 9, 2006
7023286 Systems and methods for self-calibration Apr. 4, 2006
7015762 Reference timing signal apparatus and method Mar. 21, 2006
6948388 Wireless remote sensor Sep. 27, 2005
6922111 Adaptive frequency clock signal Jul. 26, 2005
6911873 Detection circuit and method for an oscillator Jun. 28, 2005

1 2 3 4 5 6 7 8










 
 
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